COST Action SEADDA (CA18128) is funded by the Horizon 2020 Framework Programme of the European Union, and is an international community of archaeologists and digital specialists working together to secure the future of archaeological data across Europe and beyond. It is comprised of four working groups focused on understanding the current state-of-the-art regarding the preservation, dissemination and re-use of archaeological data and developing common understandings around international best practice for the preservation, dissemination and re-use of archaeological data, and establish the field as a priority area for research. SEADDA has over 100 members representing 31 COST countries and four International Partner Countries.